//And finally, some test code that demonstrates using the above code to play music.
public static void Test_PiezoSpeaker()
{
// setup the speaker on digital pin 5
PiezoSpeaker speaker = new PiezoSpeaker(Pins.GPIO_PIN_D5);
// define some tunes
string[] tunes = new string[]
{
"C * F / F * F A G / F * G A F / F A + C D", // Auld Lang Syne
"D / D * * E D G * F# / / D / D * * E D A * G / / D / D * * + D - B G F# * E / / + C / C * * - B G A * G", // Happy birthday
"C C G G A A * G / F F E E D D * C / G G F F E E * D / G G F F E E * D / C C G G A A * G / F F E E D D * C", // twinkle, twinkle
"A B + C D E F# G# A G F E D C - B A", // melodic minor scale
};
// each time the button is pressed we're going to cycle to the next tune in the list
// if we reach the end of the list, start at the beginning again.
int which = -1;
Button button = new Button(Pins.ONBOARD_SW1);
button.Pressed += delegate
{
which++;
if (which == tunes.Length)
{
which = 0;
}
speaker.Play(tunes[which], 4, 333);
};
// as this is driven by the button being pressed, we don't need to poll
// anything so we just put the main thread to sleep and wait... and wait... and wait...
Thread.Sleep(Timeout.Infinite);
}
//And finally, some test code that demonstrates using the above code to play music.
public static void Test_PiezoSpeaker()
{
// setup the speaker on digital pin 5
PiezoSpeaker speaker = new PiezoSpeaker(Pins.GPIO_PIN_D5);
// define some tunes
string[] tunes = new string[]
{
"C * F / F * F A G / F * G A F / F A + C D" , // Auld Lang Syne
"D / D * * E D G * F# / / D / D * * E D A * G / / D / D * * + D - B G F# * E / / + C / C * * - B G A * G", // Happy birthday
"C C G G A A * G / F F E E D D * C / G G F F E E * D / G G F F E E * D / C C G G A A * G / F F E E D D * C" , // twinkle, twinkle
"A B + C D E F# G# A G F E D C - B A", // melodic minor scale
};
// each time the button is pressed we're going to cycle to the next tune in the list
// if we reach the end of the list, start at the beginning again.
int which = -1;
Button button = new Button(Pins.ONBOARD_SW1);
button.Pressed += delegate
{
which++;
if (which == tunes.Length)
which = 0;
speaker.Play(tunes[which], 4, 333);
};
// as this is driven by the button being pressed, we don't need to poll
// anything so we just put the main thread to sleep and wait... and wait... and wait...
Thread.Sleep(Timeout.Infinite);
}
public void Play(PiezoSpeaker speaker)
{
speaker.Play(_frequency, _duration);
}
public void Play(PiezoSpeaker speaker)
{
speaker.Play(_frequency, _duration);
}